干旱区生态环境知识资源中心(Arid): Comparison of blue and green water fluxes for different land use classes in a semi-arid cultivated catchment using remote sensing

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DOI	10.1016/j.ejrh.2021.100860
	Comparison of blue and green water fluxes for different land use classes in a semi-arid cultivated catchment using remote sensing
	Msigwa, Anna; Komakech, Hans C.; Salvadore, Elga; Seyoum, Solomon; Mul, Marloes L.; van Griensven, Ann
通讯作者	Msigwa, A (corresponding author), Vrije Univ Brussel, Dept Hydrol & Hydraul Engn, Pl Laan 2, B-1050 Brussels, Belgium.
来源期刊	JOURNAL OF HYDROLOGY-REGIONAL STUDIES
EISSN	2214-5818
出版年	2021
卷号	36
英文摘要	Study area: Kikuletwa catchment, Upper Pangani River Basin, Tanzania. Study focus: This study compared yearly blue and green water fluxes using four different methods: Senay's method (SN) (Senay et al., 2016), van Eekelen method (EK) (van Eekelen et al., 2015), the Budyko method (Simons et al., 2020) and the Soil Water Balance (SWB) model (FAO and IHE Delft, 2019). The yearly blue and green water fluxes of different Land Use Land Cover (LULC) classes were estimated using an ensemble of seven global remote sensing-based evapotranspiration products (Ensemble ET) and the CHIRPS rainfall dataset. The Ensemble ET was created from seven global RS-based surface energy balance models (GLEAM, CMRS-ET, SSEBop, ALEXI, SEBS, ETMonitor and MOD16). New hydrological insights: Our study found that the EK method was able to map blue and green water fluxes with realistic results for irrigated and non-irrigation cultivated areas. Budyko and SWB gave too high blue water fluxes for the non-irrigated agricultural areas, whereas the Budyko and SWB models were not able to show a clear difference in blue-water fluxes in irrigated versus non-irrigated areas. On the other hand, the SN method estimated no blue water fluxes in more than half of the identified irrigated areas. Three of the four methods estimate the highest blue water fluxes (318-582 mm/y) in forested areas, while the SWB model estimates the highest blue water fluxes in irrigated banana and coffee (278 mm/y). Overall, we conclude that the EK method yielded the most realistic spatial pattern of blue-water fluxes when compared to the irrigated land use map, whereas SWB could be considered after further calibration if higher temporal data resolution (e.g. monthly) is required.
英文关键词	Evapotranspiration Water fluxes Water management Land Use Land Cover
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000687248400002
WOS关键词	RIVER-BASIN ; EVAPOTRANSPIRATION PRODUCTS ; FOOTPRINT REDUCTION ; MODIS DATA ; SATELLITE ; MODEL ; AGRICULTURE ; RESOURCES ; SCARCITY
WOS类目	Water Resources
WOS研究方向	Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368558
作者单位	[Msigwa, Anna; Komakech, Hans C.] Nelson Mandela African Inst Sci & Technol, Arusha, Tanzania; [Msigwa, Anna; Salvadore, Elga; Seyoum, Solomon; van Griensven, Ann] Vrije Univ Brussels, Brussels, Belgium; [Salvadore, Elga; Seyoum, Solomon; Mul, Marloes L.; van Griensven, Ann] IHE Delft Inst Water Educ, Delft, Netherlands
推荐引用方式 GB/T 7714	Msigwa, Anna,Komakech, Hans C.,Salvadore, Elga,et al. Comparison of blue and green water fluxes for different land use classes in a semi-arid cultivated catchment using remote sensing[J],2021,36.
APA	Msigwa, Anna,Komakech, Hans C.,Salvadore, Elga,Seyoum, Solomon,Mul, Marloes L.,&van Griensven, Ann.(2021).Comparison of blue and green water fluxes for different land use classes in a semi-arid cultivated catchment using remote sensing.JOURNAL OF HYDROLOGY-REGIONAL STUDIES,36.
MLA	Msigwa, Anna,et al."Comparison of blue and green water fluxes for different land use classes in a semi-arid cultivated catchment using remote sensing".JOURNAL OF HYDROLOGY-REGIONAL STUDIES 36(2021).